<template>
    <div class="home">
        <el-container class="home-container">
            <!-- 头部区域 -->
            <el-header>
                <div>
                    <!-- logo -->
                    <img src="../assets/logo.png" alt="">
                    <!-- 顶部标题 -->
                    <span>电商后台管理系统</span>
                </div>
                <el-button type="info" @click="logout"> 退出 </el-button>
            </el-header>
            <!-- 页面主体区域 -->
            <el-container>
                <!-- 侧边栏 -->
                <el-aside :width="isCollapse ? '64px':'200px'">
                    <!-- 伸缩侧边栏按钮 -->
                    <div class="toggle-button" @click="toggleCollapse">|||</div>
                    <!-- 侧边栏菜单 -->
                    <el-menu
                            :default-active="activePath"
                            router
                            :collapse="isCollapse"
                            :unique-opened="true"
                            background-color="#333744"
                            text-color="#fff"
                            active-text-color="#ffd04b">
                        <!-- 一级菜单 -->
                        <el-submenu :index="item.id+''" v-for="(item, index) in menuList" :key="item.id">
                            <!-- 一级菜单模板 -->
                            <template slot="title">
                                <!-- 图标 -->
                                <i :class="iconsObj[item.id]"></i>
                                <!--<i :class="el-icon-location"></i>-->
                                <!-- 文本 -->
                                <span>{{item.authName}}</span>
                            </template>
                            <!-- 二级子菜单 -->
                            <el-menu-item :index="'/'+i.path" v-for="i in item.children" :key="i.id" @click="saveNavState('/'+i.path)">
                                <!-- 二级菜单模板 -->
                                <template slot="title">
                                    <!-- 图标 -->
                                    <i :class="iconsLcon[i.id]"></i>
                                    <!-- 文本 -->
                                    <span>{{i.authName}}</span>
                                </template>
                            </el-menu-item>
                        </el-submenu>

                    </el-menu>
                </el-aside>
                <!-- 主体结构 -->
                <el-main>
                    <router-view></router-view>
                </el-main>
            </el-container>
        </el-container>
    </div>
</template>

<script>

    export default {
        name: 'Home',
        data(){
            return{
                menuList:[],
                iconsObj: {
                    '125':'iconfont icon-user',
                    '103':'iconfont icon-tijikongjian',
                    '101':'iconfont icon-shangpin',
                    '102':'iconfont icon-danju',
                    '145':'iconfont icon-baobiao'
                },
                iconsLcon: {
                    110: "el-icon-s-check",
                    111: "el-icon-user",
                    112: "el-icon-setting",
                    104: "el-icon-s-grid",
                    115: "el-icon-document-copy",
                    121: "el-icon-s-data",
                    107: "el-icon-edit-outline",
                    146: "el-icon-office-building",
                },
                isCollapse: false,
                activePath: "/welcome",
            }
        },
        mounted(){
            this.getMenuList();
            this.activePath = window.sessionStorage.getItem("activePath")
        },
        methods: {
            async getMenuList() {
                // 发送请求获取左侧菜单数据
                const { data: res } = await this.$http.get('menus');
                if (res.meta.status !== 200) return this.$message.error(res.meta.msg);

                this.menuList = res.data;
                console.log("menuList===>",res)
            },
            logout(){
                window.sessionStorage.clear();
//                window.sessionStorage.removeItem("token");
                this.$router.push("/login")
            },
            toggleCollapse(){
                this.isCollapse = !this.isCollapse;
            },
            saveNavState( path ){
                //点击二级菜单的时候保存被点击的二级菜单信息
                window.sessionStorage.setItem("activePath",path);
                this.activePath = path;
            }
        }
    }
</script>

<style type="text/scss" scope lang="scss">
    .home-container {

        /*height: 100%;*/
        height: 100vh;
    }

    .el-header {
        background-color: #373d41;
        display: flex;
        justify-content: space-between;
        padding-left: 0;
        align-items: center;
        color: #fff;
        font-size: 20px;
        > div {
            display: flex;
            align-items: center;
            img {
                transform: scale(0.25);
            }
            span {
                margin-left: 15px;
            }
        }
    }

    .el-aside {
        background-color: #333744;
        .el-menu {
            border-right: none;
        }
    }

    .el-main {
        background-color: #eaedf1;
    }

    .iconfont {
        margin-right: 10px;
    }

    .toggle-button {
        background-color: #4a5064;
        font-size: 10px;
        line-height: 24px;
        color: #fff;
        text-align: center;
        letter-spacing: 0.2em;
        cursor: pointer;
    }
</style>
